PHPMyAdmin Windows XAMPP Missing MySQL Extension Issue
If after you've removed the semi-colons you STILL get this error. Your extension_dir value in php.ini may be the problem simply point the value to extension_dir = "C:\php\ext"
(or wherever you store your php modules), restart your server and you should be fine.
Fairly simple fix. Find your PHP.ini file, and in it there will be a list of extensions. Look for the one that says mysql and take the ;
off the front of the line.
;extension=php_mysql.dll
;extension=php_mysqli.dll
;extension=php_pdo_mysql.dll
If you don't know where your PHP.ini file resides, you can put this code in a script to find out:
phpinfo()